Celebrities rushed to social media this week to condemn the carnage Syrian dictator Bashar al-Assad has inflicted on his own people in Aleppo — and some in Hollywood also attacked President-elect Donald Trump over the tragedy.

Assad’s human rights atrocities are half a decade old. The situation in Aleppo is in part the product of President Barack Obama’s failure to lead in preventing Assad from making human rights violations a habit.

Meanwhile, other celebrities including Madonna, Jessica Chastain, Ellen DeGeneres and Wesley Snipes tweeted their condolences for those lost in Aleppo and encouraged others to donate to relief efforts.